Table C21A.Electricity
Consumption and Conditional Energy Intensity by Building Size for All
Buildings, 2003

Total
Electricity
Consumption
(billion kWh)

Total
Floorspace of
Buildings Using Electricity
(million square feet)

Electricity
Energy Intensity(kWh/square foot)

1,001 to 10,000 Square
Feet

10,001 to 100,000 Square Feet

Over 100,000 Square Feet

1,001 to 10,000
Square
Feet

10,001 to 100,000 Square
Feet

Over 100,000 Square
Feet

1,001 to 10,000 Square Feet

10,001 to 100,000 Square Feet

Over 100,000 Square
Feet

All Buildings
................................

201

412

431

13,124

31,858

25,200

15.3

12.9

17.1

Principal Building
Activity

Education
.......................................

9

55

45

806

5,378

3,687

11.1

10.2

12.2

Food Sales
.....................................

36

24

Q

747

467

Q

48.8

51.1

Q

Food Service
.................................

47

16

Q

986

664

Q

47.8

24.5

Q

Health Care
....................................

6

17

50

445

835

1,883

13.1

20.5

26.3

Inpatient .......................................

N

Q

47

N

Q

1,723

N

Q

27.0

Outpatient ....................................

6

11

Q

445

652

Q

13.1

17.4

Q

Lodging
..........................................

4

31

34

260

2,274

2,563

14.0

13.5

13.5

Mercantile
......................................

28

99

89

1,944

5,204

4,044

14.2

19.0

21.9

Retail (Other Than Mall) ...............

17

28

18

1,363

2,133

821

12.2

12.9

21.5

Enclosed and Strip Malls ..............

11

71

71

581

3,071

3,223

19.1

23.1

22.0

Office
.............................................

30

75

105

2,320

4,602

5,286

12.9

16.4

19.9

Public Assembly
............................

10

21

19

850

1,851

1,233

11.6

11.2

Q

Public Order and Safety
................

2

6

Q

231

390

Q

10.4

14.9

Q

Religious Worship
..........................

5

11

Q

1,160

2,391

Q

4.5

4.7

Q

Service
..........................................

14

19

Q

1,687

1,862

Q

8.2

10.2

Q

Warehouse and Storage ...............

7

25

40

1,256

4,482

3,687

5.8

5.5

10.8

Other
..............................................

2

11

25

206

601

922

9.6

19.1

27.6

Vacant
...........................................

Q

Q

Q

Q

Q

Q

Q

Q

Q

Year Constructed

Before 1920
...................................

6

14

6

959

1,981

805

6.8

7.3

7.0

1920 to 1945
..................................

16

19

28

1,514

2,426

2,768

10.9

7.8

10.0

1946 to 1959
..................................

16

28

28

1,517

3,301

2,237

10.8

8.5

12.4

1960 to 1969
..................................

20

49

37

1,584

4,457

2,556

12.5

11.0

14.3

1970 to 1979
..................................

37

82

82

2,369

5,388

4,301

15.7

15.3

19.2

1980 to 1989
..................................

38

79

114

1,968

4,912

5,410

19.2

16.2

21.1

1990 to 1999
..................................

52

95

94

2,325

6,647

4,726

22.3

14.3

20.0

2000 to 2003
..................................

15

44

42

887

2,745

2,396

16.8

16.2

17.7

Census Region and
Division

Northeast
.......................................

25

64

83

2,159

5,754

5,985

11.6

11.1

13.9

New England ...............................

8

18

16

729

1,630

1,071

10.7

11.0

14.5

Middle Atlantic ..............................

17

46

68

1,431

4,124

4,914

12.0

11.2

13.7

Midwest
.........................................

47

98

89

3,299

8,321

6,104

14.3

11.8

14.6

East North Central ........................

30

65

74

1,797

5,505

4,900

16.5

11.8

15.0

West North Central ......................

18

33

15

1,502

2,816

1,204

11.7

11.8

12.6

South
.............................................

89

176

187

5,050

12,123

8,844

17.6

14.5

21.2

South Atlantic ..............................

48

94

111

2,622

6,074

5,141

18.2

15.5

21.7

East South Central .......................

13

30

15

868

2,081

597

14.4

14.6

24.3

West South Central ......................

29

51

61

1,560

3,969

3,105

18.4

12.8

19.8

West
..............................................

40

74

71

2,615

5,659

4,267

15.2

13.1

16.7

Mountain ......................................

12

28

27

890

1,993

1,282

13.9

14.1

21.4

Pacific ..........................................

27

46

44

1,725

3,667

2,984

15.9

12.5

14.7

Climate Zone:
30-Year Average

Under 2,000 CDD and --

More than 7,000 HDD ...................

31

60

47

2,385

5,382

3,534

13.0

11.1

13.2

5,500-7,000 HDD .........................

45

102

108

3,270

8,627

6,652

13.6

11.8

16.2

4,000-5,499 HDD .........................

29

71

89

1,986

4,872

5,516

14.6

14.5

16.2

Fewer than 4,000 HDD ................

59

97

105

3,666

7,762

5,636

16.0

12.5

18.6

2,000 CDD or More and --

Fewer than 4,000 HDD ................

37

83

82

1,817

5,215

3,863

20.6

15.8

21.2

Number of Establishments

One
................................................

166

252

208

10,331

20,970

13,077

16.0

12.0

15.9

2 to 5
..............................................

31

76

73

2,372

6,221

3,934

13.2

12.3

18.6

6 to 10
............................................

Q

41

23

Q

2,060

1,106

Q

20.0

20.6

11 to 20
..........................................

Q

32

31

Q

1,548

1,819

Q

21.0

17.2

More than 20
..................................

Q

8

94

Q

462

4,571

Q

18.4

20.5

Currently Unoccupied
....................

Q

Q

Q

Q

Q

Q

Q

Q

Q

Energy Sources (more
than

one may apply)

Electricity
.......................................

201

412

431

13,124

31,858

25,200

15.3

12.9

17.1

Natural Gas
....................................

118

292

333

7,142

21,928

19,396

16.6

13.3

17.2

Fuel Oil
...........................................

13

59

203

1,327

3,790

11,133

9.6

15.5

18.3

District Heat
...................................

Q

20

80

Q

1,232

4,244

Q

16.4

18.8

Energy End Uses (more
than

one may apply)

Buildings with Space Heating ........

188

400

418

11,963

29,981

24,466

15.7

13.3

17.1

Buildings with Cooling
....................

189

403

418

10,918

28,985

23,642

17.3

13.9

17.7

Buildings with Water Heating .........

180

397

414

10,551

28,569

23,692

17.1

13.9

17.5

Annual Consumption

(kilowatthours)

10,000 or Less
..............................

4

Q

Q

1,954

Q

Q

1.8

Q

Q

10,001 to 50,000
............................

39

6

Q

5,607

3,534

Q

7.0

1.8

Q

50,001 to 100,000
..........................

41

14

Q

2,782

3,382

Q

14.6

4.1

Q

100,001 to 500,000
........................

102

133

3

2,628

13,156

1,838

38.7

10.1

1.6

500,001 to 1,000,000
.....................

Q

90

8

Q

5,538

1,696

Q

16.2

4.6

1,000,001 to 5,000,000
..................

Q

166

164

Q

5,369

10,206

Q

30.9

16.1

Over 5,000,000
..............................

N

Q

255

N

Q

10,720

N

Q

23.8

See "Guide to the Tables" or "Glossary" for
further explanations of the terms used in this table. Both can be accessed
from the CBECS web sitehttp://www.eia.gov/consumption/commercial/.
Q=Data withheld because the Relative Standard Error (RSE) was greater than
50 percent, or fewer than 20 buildings were sampled.
N=No responding cases in sample that use electricity.

Notes:
● Statistics for the "Energy End Uses" category represent
total consumption in buildings that have the end use, not consumption
specifically for that particular end use. ● Due to rounding, data may
not sum to totals.
Source: Energy Information Administration, Office of Energy Markets and End
Use, Forms EIA-871A, C, and E of the 2003 Commercial Buildings Energy
Consumption Survey.